carbon emissions from the university of minnesota buildings & facilities andrew edwins david...

Carbon Emissions from the University of Minnesota

Buildings & FacilitiesAndrew EdwinsDavid Grandall

Luke HollenkampPatrick SantelliAmy Scheller

President’s Climate Commitment

Initiate the development of a comprehensive plan to achieve climate neutrality as soon as possible

Complete a Greenhouse Gas inventory by January 2009 Within one year of signing this document, complete a comprehensive

inventory of all greenhouse gas emissions (including emissions from electricity, heating, commuting, and air travel) and update the inventory every other year thereafter.

Develop an Action Plan by January 2010 Within two months of signing this document, create institutional

structures to guide the development and implementation of the plan. Within two years of signing this document, develop an institutional

action plan for becoming climate neutral

Initiate two or more items from a list of tangible actions to reduce greenhouse gases while the more comprehensive plan is being developed

TC Campus Energy Diagram

Campus BuildingsXcel Power Plants

Southeast Steam Plant

FUEL

FUELSTEAM

ELECTRICITY

ELECTRICITY

Fuel Inputs – Xcel Energy

9% Renewable Energy in 2007Increased Renewable Mandates

15% 2010 18% 2012 25% 2016 30% 2020

Fuel Inputs – Southeast Steam Plant

Varying Fuel Inputs Coal Natural Gas Oats Hulls w/ Coal

Past CO2 Emissions Trend

14.5% Reduction

Future Consumption & Emissions

Predicted CO2 Emissions Trend

12.1% Reduction

CO2 Reduction Policies

Demand Side New Buildings

LEED Design ENERGY STAR Design

Existing Buildings Retrocommissioning

Behavioral Changes

Supply Side Renewable Energy

Wind

Demand Side – New Buildings (LEED)

Leadership in Energy and Environmental Design (LEED) by USGBCAchieve LEED-NC Silver rating

Focus on Energy Reduction points

Beginning in 2009, U of M has 1% additional square footage per year as Silver12% Silver buildings by 2020 lowers CO2 emissions by 3.84%Costs $8,692,458 for each 1% CO2 reduction in 2009 (*could have no cost)

Demand Side – New Buildings (ENERGY STAR)

ENERGY STAR building program by US EPA & US DOEENERGY STAR buildings perform better than 75% of peers

On average, consume 40% less energy and emit 35% less CO2

Beginning in 2009, U of M has 1% additional square footage per year as ENERGY STAR12% ENERGY STAR buildings by 2020 lowers CO2 emissions by 4.20%Negligible cost for each 1% CO2 reduction in 2009

Demand Side – Existing Buildings (Retrocommissioning)

Reevaluating existing building systems for functionality and efficiency.Annually assess 20% of buildings; retrocommission 10% All campus buildings are evaluated every five years.By 2020, lowered CO2 emissions by 4.50%$1,000,000 annual expenditure is replenished by decreased utility costs

Demand Side - Behavioral

Oberlin College Real time metering

32% Reduction 2 – 3 year payback

General Recommendations Alliance to Save Energy’s Green Campus Program Energy Star for Higher Education Association for the Advancement of

Sustainability in Higher Education

Purchase additional wind power through Xcel’s Windsource program$0.71/100kWh during first half of 2008Beginning in 2009, U of M purchases 1% additional consumption per year12% Windsource by 2020 lowers CO2 emissions by 7.74%Costs $46,814 for each 1% CO2 reduction in 2009Xcel’s capacity is an issue

Supply Side – Renewable Energy (Wind)

Policy Effects

Policy Effects

Retrocomm -4.50%

LEED Silver -3.84%

Windsource -7.74%

ENERGY STAR -4.20%